DELTA 1 DEB, 21461
Orbit data source: Space-Track
DELTA 1 DEB, 21461 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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21461 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 DELTA 1 DEB
1 21461U 75052EV 26135.26148733 .00000127 00000-0 36660-3 0 9998
2 21461 99.7302 232.9409 0206495 129.1459 257.7408 13.20506835686356Epoch: 2026-05-15T06:16Z
TLE epoch observation values (Epoch: 2026-05-15T06:16:32.505Z)
Latitude
24.23561°
Longitude
-98.59471°
Altitude
1,221.786 km
Speed
7.228 km/s
True Right ascension
15h 14m 08s
True Declination
24° 06' 54"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
15:59:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,336.2 km
Perigee altitude
1,024.051 km
Semi-major axis
7,558.262 km
Eccentricity
0.02065
Inclination
99.7302°
RAAN
232.9409°
Arg. of periapsis
129.1459°
True anomaly
255.44172°
Mean anomaly
257.7408°
Eccentric anomaly
256.58993°
Mean motion
3.30301 °/min
Orbital period
108.99 mins
BSTAR
0.0003666
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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.DELTA 1 DEB Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-05-16 07:43:16.081Z | 219.165° SW | 2026-05-16 07:48:16.081Z | 269.203° W | 22.253° | 2026-05-16 07:53:16.081Z | 317.095° NNW |
| 10 mins | 2026-05-16 19:08:16.081Z | 24.992° NE | 2026-05-16 19:13:16.081Z | 125.923° SE | 41.55° | 2026-05-16 19:18:16.081Z | 182.573° SSW |
| 6 mins | 2026-05-16 20:57:16.081Z | 329.528° NNW | 2026-05-16 20:59:16.081Z | 306.351° NW | 19.309° | 2026-05-16 21:03:16.081Z | 261.621° W |
| 10 mins | 2026-05-17 05:34:16.081Z | 127.625° SE | 2026-05-17 05:39:16.081Z | 61.085° ENE | 34.094° | 2026-05-17 05:44:16.081Z | 2.655° NNE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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